spl-token-2022-interface 3.0.0

Solana Program Library Token 2022 Interface
Documentation 
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use {
    crate::extension::{Extension, ExtensionType},
    bytemuck::{Pod, Zeroable},
    solana_address::Address,
    solana_nullable::MaybeNull,
};
#[cfg(feature = "serde")]
use {
    serde::{Deserialize, Serialize},
    serde_with::{As, DisplayFromStr},
};

/// Instructions for the `MetadataPointer` extension
pub mod instruction;

/// Metadata pointer extension data for mints.
#[repr(C)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
#[cfg_attr(feature = "serde", serde(rename_all = "camelCase"))]
#[derive(Clone, Copy, Debug, Default, PartialEq, Pod, Zeroable)]
pub struct MetadataPointer {
    /// Authority that can set the metadata address
    #[cfg_attr(feature = "serde", serde(with = "As::<Option<DisplayFromStr>>"))]
    pub authority: MaybeNull<Address>,
    /// Account address that holds the metadata
    #[cfg_attr(feature = "serde", serde(with = "As::<Option<DisplayFromStr>>"))]
    pub metadata_address: MaybeNull<Address>,
}

impl Extension for MetadataPointer {
    const TYPE: ExtensionType = ExtensionType::MetadataPointer;
}